| /** @file | |
| Copyright (c) 2014, Intel Corporation. All rights reserved.<BR> | |
| This program and the accompanying materials | |
| are licensed and made available under the terms and conditions of the BSD License | |
| which accompanies this distribution. The full text of the license may be found at | |
| http://opensource.org/licenses/bsd-license.php. | |
| THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, | |
| WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. | |
| **/ | |
| #ifndef _CACHE_LIB_H_ | |
| #define _CACHE_LIB_H_ | |
| // | |
| // EFI_MEMORY_CACHE_TYPE | |
| // | |
| typedef INT32 EFI_MEMORY_CACHE_TYPE; | |
| #define EFI_CACHE_UNCACHEABLE 0 | |
| #define EFI_CACHE_WRITECOMBINING 1 | |
| #define EFI_CACHE_WRITETHROUGH 4 | |
| #define EFI_CACHE_WRITEPROTECTED 5 | |
| #define EFI_CACHE_WRITEBACK 6 | |
| /** | |
| Reset all the MTRRs to a known state. | |
| @retval EFI_SUCCESS All MTRRs have been reset successfully. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| ResetCacheAttributes ( | |
| VOID | |
| ); | |
| /** | |
| Given the memory range and cache type, programs the MTRRs. | |
| @param[in] MemoryAddress Base Address of Memory to program MTRR. | |
| @param[in] MemoryLength Length of Memory to program MTRR. | |
| @param[in] MemoryCacheType Cache Type. | |
| @retval EFI_SUCCESS Mtrr are set successfully. | |
| @retval EFI_LOAD_ERROR No empty MTRRs to use. | |
| @retval EFI_INVALID_PARAMETER The input parameter is not valid. | |
| @retval others An error occurs when setting MTTR. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| SetCacheAttributes ( | |
| IN EFI_PHYSICAL_ADDRESS MemoryAddress, | |
| IN UINT64 MemoryLength, | |
| IN EFI_MEMORY_CACHE_TYPE MemoryCacheType | |
| ); | |
| #endif | |